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Message-Id: <200709140418.l8E4IRC2028669@po-mbox300.hop.2iij.net>
Date: Fri, 14 Sep 2007 13:16:53 +0900
From: Yoichi Yuasa <yoichi_yuasa@...peaks.co.jp>
To: Richard Purdie <rpurdie@...ys.net>
Cc: yoichi_yuasa@...peaks.co.jp,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH][3/3] led: update Cobalt Qube series front LED support
Update Cobalt Qube series front LED support.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@...peaks.co.jp>
diff -pruN -X mips/Documentation/dontdiff mips-orig/drivers/leds/leds-cobalt-qube.c mips/drivers/leds/leds-cobalt-qube.c
--- mips-orig/drivers/leds/leds-cobalt-qube.c 2007-09-14 11:16:22.397075500 +0900
+++ mips/drivers/leds/leds-cobalt-qube.c 2007-09-14 11:38:52.797470250 +0900
@@ -3,40 +3,100 @@
*
* Control the Cobalt Qube series front LED
*/
-
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/leds.h>
#include <linux/module.h>
+#include <linux/platform_device.h>
#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/leds.h>
-#include <asm/mach-cobalt/cobalt.h>
-static void cobalt_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
+#include <asm/io.h>
+
+#define LED_FRONT_LEFT 0x01
+#define LED_FRONT_RIGHT 0x02
+
+static void __iomem *led_port;
+static u8 led_value;
+
+static void qube_front_led_set(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
{
if (brightness)
- COBALT_LED_PORT = COBALT_LED_BAR_LEFT | COBALT_LED_BAR_RIGHT;
+ led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
else
- COBALT_LED_PORT = 0;
+ led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT);
+ writeb(led_value, led_port);
+}
+
+static struct led_classdev qube_front_led = {
+ .name = "qube-front",
+ .brightness = LED_FULL,
+ .brightness_set = qube_front_led_set,
+ .default_trigger = "ide-disk",
+};
+
+static int __devinit cobalt_qube_led_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ int retval;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EBUSY;
+
+ led_port = ioremap(res->start, res->end - res->start + 1);
+ if (!led_port)
+ return -ENOMEM;
+
+ led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
+ writeb(led_value, led_port);
+
+ retval = led_classdev_register(&pdev->dev, &qube_front_led);
+ if (retval)
+ goto err_iounmap;
+
+ return 0;
+
+err_iounmap:
+ iounmap(led_port);
+ led_port = NULL;
+
+ return retval;
+}
+
+static int __devexit cobalt_qube_led_remove(struct platform_device *pdev)
+{
+ led_classdev_unregister(&qube_front_led);
+
+ if (led_port) {
+ iounmap(led_port);
+ led_port = NULL;
+ }
+
+ return 0;
}
-static struct led_classdev cobalt_led = {
- .name = "cobalt-front-led",
- .brightness_set = cobalt_led_set,
- .default_trigger = "ide-disk",
+static struct platform_driver cobalt_qube_led_driver = {
+ .probe = cobalt_qube_led_probe,
+ .remove = __devexit_p(cobalt_qube_led_remove),
+ .driver = {
+ .name = "Cobalt Qube LEDs",
+ .owner = THIS_MODULE,
+ },
};
-static int __init cobalt_led_init(void)
+static int __init cobalt_qube_led_init(void)
{
- return led_classdev_register(NULL, &cobalt_led);
+ return platform_driver_register(&cobalt_qube_led_driver);
}
-static void __exit cobalt_led_exit(void)
+static void __exit cobalt_qube_led_exit(void)
{
- led_classdev_unregister(&cobalt_led);
+ platform_driver_unregister(&cobalt_qube_led_driver);
}
-module_init(cobalt_led_init);
-module_exit(cobalt_led_exit);
+module_init(cobalt_qube_led_init);
+module_exit(cobalt_qube_led_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Front LED support for Cobalt Qube series");
-
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